Great script Good inspiration for moving my oun ongithub

[Chafouinerie]

I think you can add

.inplace-field.js-shout-input{
background:#323232!important;
}

#id_url {
background:#323232!important;
}

to your script. For better input box style

[Chafouinerie]

I speak about the Last.fm script

[Chafouinerie]

or
.inplace-field.js-shout-input{
background:none!important;
}

#id_url {
background:none!important;
}

[Chafouinerie]

.inplace-field.js-shout-input{
background:none!important;
}

#id_url {
background:none!important;
}

#id_url:focus {
box-shadow:none!important;
outline:none!important;
}

#jumpto_position{
background:none!important;
}

#jumpto_position:focus {
box-shadow:none!important;
outline:none!important;
}

.music-search-field {
background:#1e1e1e!important;
}